Remote is a great feature, it's a shame to put people off unnecessarily. I think the original warnings given are too extreme
The potential bugs that stem from not cleaning up event handlers (or any reference) are present in any Javascript code. We don't avoid using event-handlers in the DOM because we might forget to clean them up!
I've added an example of the behaviour of return values from synchronously called callbacks from renderer, and have changed the advice from 'you shouldn't do this' to 'be careful when you do this'.
renamed a few occurances of "web page" to "renderer"
renamed a few files that had "browser" in their name to "main-process"
note that there are still many occurances of web page.